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Since 1975, Rock River Laboratory has provided reliable, accurate, and timely feed, forage, soil, and water analyses to the agricultural community throughout the US, and more recenly, across the globe. Our staff of trained technicians and office personnel is at your service to answer any of your analysis questions. Rock River Laboratory is certified by the National Forage Testing Association, Farm Service Agency, Minnesota Department of Agriculture, Wisconsin Department of Agriculture Trade and Consumer Protection, a member of the Midwest Lab Consortium, and participant in numerous check-sample programs.